Answer:
I think the answer to the question is c
Stanzas do not have to repeat but sometimes they do depending on the author. Repetition has been one of the bases for many poetic forms. This can heighten the emotional impact of a piece. <span> A sound, syllable, word, phrase, line, stanza, or metrical pattern can be repeated. Hope this answers your question.</span>
Both options are technically grammatically correct, but the one that makes the most sense in this sentence is "when."
<span>The first sentence of each paragraph is not indented. </span>
